.app_layout{
  .app_head{
    height: 50px;
    width: 100%;
    top: 0;
    left: 0;
    right: 0;
    position: absolute;
    background: #fff;
  }
  .app_menu{
    position: absolute;
    top: 60px;
    left: 0;
    bottom: 0;
    width: 200px;
    background: #fff;
  }
  .app_content{
    position: absolute;
    top: 60px;
    left: 210px;
    right: 10px;
    bottom: 0px;
    border-radius: 3px;
    background: #fff;
    padding: 10px;
    box-sizing: border-box;
    overflow-y: auto;
    &::-webkit-scrollbar{
      // width: 10px;
    }
  }
  .app_logo{
    width: 210px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    font-size: 28px;
    color: #1989fa;
    font-weight: 700;
    border-right: 10px solid #f5f5f5;
  }
  .right_link{
    color: #1890ff;
    margin-right: 20px;
  }
}
